Search results for "Protection"
showing 10 items of 1623 documents
The German Water Chemical Society: Actual Trends and Fields of Research in the Principle Committee “Basic Research”Representing the principle committ…
2001
Resveratrol, a polyphenolic phytoalexin present in red wine, enhances expression and activity of endothelial nitric oxide synthase.
2002
Background— Estrogens can upregulate endothelial nitric oxide synthase (eNOS) in human endothelial cells by increasing eNOS promoter activity and enhancing the binding activity of the transcription factor Sp1. Resveratrol, a polyphenolic phytoalexin found in grapes and wine, has been reported to act as an agonist at the estrogen receptor. Therefore, we tested the effect of this putative phytoestrogen on eNOS expression in human endothelial cells. Methods and Results— Incubation of human umbilical vein endothelial cells (HUVEC) and HUVEC-derived EA.hy 926 cells with resveratrol for 24 to 72 hours upregulated eNOS mRNA expression in a time- and concentration-dependent manner (up to 2.8-fold)…
Postnatal programming cardiometabolic risk : effects of moderate caloric restriction in adulthood
2016
Postnatal overfeeding (PNOF) in rodents induces early programming of cardio-metabolic risk. Our aim was to determine if a moderate diet restriction could restore cardio-metabolic alterations induced by PNOF.Immediately after birth, litters of C57BL/6 mice were either maintained at 9 (normal litter, NL), or reduced to 3 (small litter, SL) to induce PNOF. At weaning, all mice received a standard diet ad libitum (AL). At 6 month of age, half of the NL and SL mice were assigned to a moderate 20% calorie restriction (CR: NLCR, SLCR) for one month, while the other mice continued to eat AL (AL: NLAL, SLAL). Glucose and insulin tolerance tests, cardiac function (echocardiography), body composition …
Navigating Stormy Waters: The Triangular Relationship between the United States, Vietnam and China and the South China Sea Disputes
2016
The growing triangular relationship between the U.S., Vietnam and China represents an interesting case study as to how the smaller powers around the South China Sea try to balance China’s increasing assertiveness in the region by engaging the United States. Analyzing the respective sets of bilateral relationships (U.S.-Vietnam and China-Vietnam) hence seems to be promising in order to understand the conflict dynamics in the South China Sea against the background of an often assumed, to a lesser degree examined regional (and eventually global) power transition dynamic. Vietnam has a checkered history with both the U.S. and China, all the while these countries are its most important economic …
Michel Foucault and Dorothy Smith in case file research: Strange bed-fellows or complementary thinkers?
2011
The aim of this article is to provide an exploration of how the work of two theorists with notably different stances could be used effectively to enhance critical research methods in relation to the history of child welfare social work. Our proposition is that the design and implementation of child welfare policies, practices and discourses could considerably benefit from a more historically well grounded scholarship that enables actors to connect their present concerns with the broader historical dynamics of social regulation. The article begins with a statement of the ‘problem’ and our questions to justify our reasons for engaging in this exploration. The article reports on the authors’ …
Radiation Shielding Study of Advanced Data and Power Management Systems (ADPMS) Housing Using Geant4
2008
The tendency to reduce the spacecraft mass covers nowadays all components of the spacecraft. One potential target is to reduce the mass of electronics and its housings. The use of composite materials, especially CFRP is a well known and vastly used approach to mass reduction. In cost reduction the use of standard (non-space qualified) electronics has increased. These commercial circuits and other components cannot tolerate as high radiation levels as space qualified components. Therefore the use of standard electronics components poses challenge in terms of the radiation protection capability of the ADPMS housings. The main goal of this study is to give an insight on the radiation shielding…
Cellular Prion Protein (PrPc) and Hypoxia: True to Each Other in Good Times and in Bad, in Sickness, and in Health
2016
The cellular prion protein (PrPc) and hypoxia appear to be tightly intertwined. Beneficial effects of PrPc on neuronal survival under hypoxic conditions such as focal cerebral ischemia are strongly supported. Conversely, increasing evidence indicates detrimental effects of increased PrPc expression on cancer progression, another condition accompanied by low oxygen tensions. A switch between anaerobic and aerobic metabolism characterizes both conditions. A cellular process that might unite both is glycolysis. Putative role of PrPc in stimulation of glycolysis in times of need is indeed thought provoking. A significance of astrocytic PrPc expression for neuronal survival under hypoxic conditi…
La violazione del diritto dell’Unione europea come possibile difetto di giurisdizione?
2020
The reference no. 19598/20 by the Italian Supreme Court focuses upon the admissability, in terms of lack of jurisdiction, of actions brought against judgements rendered by the Consiglio di Stato acting in violation of EU law, in particular on the lack of preliminary reference under art. 267, c. 3, TFEU. It proposes as well the vexed question of interpretation of the notion of jurisdiction which seemed to have been settled by the Constitutional Court judgment no. 6 of 2018. The paper seeks a possible solution that can guarantee the "jurisdiction" of the Court of Justice with respect to EU law, leaving the jurisdictional division of the Italian procedural system unchanged.
The appropriate and justified use of medical radiation in cardiovascular imaging: a position document of the ESC Associations of Cardiovascular Imagi…
2014
The benefits of cardiac imaging are immense, and modern medicine requires the extensive and versatile use of a variety of cardiac imaging techniques. Cardiologists are responsible for a large part of the radiation exposures every person gets per year from all medical sources. Therefore, they have a particular responsibility to avoid unjustified and non-optimized use of radiation, but sometimes are imperfectly aware of the radiological dose of the examination they prescribe or practice. This position paper aims to summarize the current knowledge on radiation effective doses (and risks) related to cardiac imaging procedures. We have reviewed the literature on radiation doses, which can range …
El consumo de drogas en los adolescentes inmigrantes: implicaciones para la prevención
2009
El fuerte crecimiento de la inmigración está cambiando la confi guración de la sociedad española en un modo muy notable. El número de alumnos extranjeros en los centros educativos ha ido aumentando de forma continuada en la última década. Esa nueva realidad determina que toda una serie de conocimientos, relativamente bien establecidos sobre el consumo de drogas de los adolescentes, deban ser revisados para establecer pautas adecuadas para el desarrollo de programas de prevención adaptados a esta nueva realidad. En este trabajo, utilizando una muestra de 2.260 estudiantes de 1er y 2º ciclo de Educación Secundaria Obligatoria (E.S.O.), se analizan los patrones de consumo de los adolescentes i…